Thomas ola eke



(No Model.)

T. CLARKE 81; R. G. WILLIAMS.

SPINDLE DRIVING MECHANISM FOR SPINNING MACHINES. No. 375,605. PatentedDec. 27, 1887..

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UNITED STATES PATENT OFFICE.

THOMAS CLARKE, OF TBURO, AND RICHARD CHRISTOPHER WILLIAMS, OF HOPEVVELL,NOVA SGOTIA, CANADA.

SPINDLE-DRlVlNG MECHANISM FOR SPINNING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 375,605, dated December27,1887.

Application filed April 11, 1887. Serial No. 234,379. (No model.)Patented in Canada June 6, 1887, No. 26,892.

To aZZ whom it may concern:

Be it known that we, THOMAS CLARKE and RICHARD CHRISTOPHER WILLrAMs,residents of Truro and Hopewell, respectively, in the counties ofColchester and Pictou, Nova Scotia, Dominion of Canada, have inventedcertain new and useful Improvements in Spindle- Driving Mechanism forSpinning-Machines; and we do hereby declare that the following is IO afull, clear, and exact description of the invention, which will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, which form apart of this specifioation, and in which- Figure l is a top plan View ofas much of a spinningframe or twistingframe as is sufficient toillustrate our improvement. Fig. 2 is a longitudinal vertical sectionalview on line :0 m, Fig. 1; and Fig. 3 is aperspective detail viewofthetension device,showing portions of the spring barrel or casingbroken away.

Similar numerals of reference indicate cor responding parts in all. thefigures.

Our invention has relation to that class of spinning or twisting framesin which the spin dles are revolved by means of one band pass ingalternately around the pulleys upon the spindles and thereupon over themain or drive roller or drum, and having pulleys for evening the tensionof the band; and it consists in the improved construction andcombination of the same, as hereinafter more full y described andclaimed.

In spinning and twisting machines the spindles may be run by individualbands passing from the main or drive roller or drum to the pulleys uponthe spindles; but by this style of banding the bobbins are liable towind un- 4o evenly on account of the uneven tension of thedifferentbands, and changes in the atmosphere, either in the temperatureof the same or in the degree of moisture of the same, will also affectthe bands, so that an uneven quality of thread I or yarn is obtained,and in driving the spindles by individual bands the spinning process isoften stopped on account of one of the bands breaking, which in a largeframe containing a great number of spindles will frequently hap- 5o penand cause considerable trouble andloss of time. For the purpose,therefore, of obtaining an even product on all the bobbins, we haveconstructed a frame in which the endless band is provided withtension-pulleys, which may take up all slack in the band, and which mayyield in the case of the tension of the band being too great, either onaccount of excessive moisture or coolness of the atmosphere, which wewill now describein detail, and particularly set forth in theclaims.

In the accompanying drawings, the numeral 1 indicates the upper bar ofthe frame in which the spindles are journaled, 2 being the lower bar;and the numerals 3 indicate the spindles, which are provided with thepulleys at and bobbins 5.

The drive roller or drum consists of sections 6, journaledlongitudinally in the frame and separated by transverse partitions 7,having the axial shaftrof the drum journaled in them, and the band 8passes alternately around a pulley of a spindle and thereupon over thedrum, back to another pulley of another spindie, and so forth. At theends of the frame the baud passes from the pulleys of the spindles atthe ends around end pulleys, 9, which may either be journaled inspring-cushioned bearings 10, as shown in the drawings, or in similaryielding hearings, or they may be journaled in rigid frames, as desired.At the transverse partitions of the frame the band is passed from theends of the drum-sections around a pulley, 11, journaled upon a shaft orbolt, 12. This boltis adj ustablysecured in a slot, 22, in the partitionby means of the thumbnut 21, so that it may be adjusted nearer to orfarther from the drum, as desired. Spring casings or barrels 13 aresecured, projecting from the back portion of the frame, and aflathelical spring, 14., is secured with its outer end a to each casing andwith its inner end to a shaft, 15, journaled in the end pieces of thedrum, the spring winding upon the shaft. The shaft is provided outsideof the head of the drum with a ratchet-wheel, 16, which is engaged by 5a pawl, 17, and at the end of the shaft two arms, 18, project inopposite directions, having grooved guide-pulleys 19, journaled uponstuds 20 upon the ends of the arms. The

straight portion of the hand between the end pulleys passes around thesepulleys at opposite sides of the same, passing from the outside of onepulley to the outside of the other pulley; and it will be seen that whenthe shafts of the pulleys have been revolved a suitable number of timesthe tension of the springs will bring the pulleys to bear against theband, tightening the same and holding it at the same tension when theband is slaekened or tightened by atmospheric influences.

The desired tension of the pulleys is attained by winding the springupon the shaft of each drum by revolving the shaft, and by thereuponsecuring the shaft by means of the pawl engaging the ratchet-wheel, whenthe band may be passed around the pulleys and the pawl released, whenthespring will act upon the band, keeping it at one tension.

It will be seen that the spring-casings having the tension-pulleys willthus take up all slack in the band and yield to contraction of the band;but in very long bands the slack caused by wear upon the band may be toogreat to be taken up by the pulleys, especially as this slack remainspermanent, and for the purpose of taking up this slack the guide-pulleysupon the partitions will serve by their adjustability upon the same. Itis also desirable at times to have the band of a sufficient length tohave a reserve in the case of breakage of the band, and theguide-pulleys upon the partitions may be adjusted sufficiently far awayfrom the drum to take up the surplus length, being moved toward the drumas the band is shortened by breakage and consequent splicing of theband.

By having the single band passing over the drum and alternately over thepulleys of the spindles, as is done in single'band machines,theband,ifbroken,will only present oneknot or splice,which will behardly perceptible, as we prefer to use asmooth splicing, while inframes having individual bands there will be aknot for every splicedband, which will render the revolutions of the spindles very uneven andconse quently the quality of the thread or yarn uneven and rough.

Having thus described our invention, we claim and desire to secure byLetters Patent of the United States 1. In a spinning or twisting frame,the com bination of the spindles, the drive-drum, horizontally-revolvingpulleys placed in the rear at the ends of the drive-drum, a band passingalternately over the drive-drum and around pulleys upon the spindles andpassing from the spindles at the ends of the gang around the end pulleysalong the rear side of the frame, a spring-actuated shaft, arms securedto one end of said shaft, and guide-pulleys having the band passingaround their opposite sides, arranged in pairs upon the ends of saidarms, as and for the purpose shown and set forth.

2. In a spinning or twisting frame, the combination of the spindles, thedrive-drum composed of sections and having the ends of thesectionsseparated by transverse partitions in the frame, a band passingalternately over the drive-drum and around pulleys upon the spindles,the slotted partitions, a bolt in each partition, and a pulley upon eachbolt and having the bands passing around them from the drum, as and forthe purpose shown and set forth.

In testimony that we claim the foregoing as our own we have hereuntoaffixed our signatures in presence of two witnesses.

THOMAS CLARKE. RICHARD CHRISTOPHER WILLIAMS. \Vitnesses:

A. MAQLEAN, PETER MOPHIE.

